Decking plank



FIG. 1 is a left end view of a decking plank showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right end view thereof;

FIG. 4 is bottom plan view thereof; and,

FIG. 5 is a front perspective view thereof. 

The ornamental design for a decking plank, as shown and described. 